Amperometry

Introduction

Definition

The term “amperometry” describes an electroanalytical technique which is based on a constant polarization voltage ranging within the plateau of the diffusion limited current [
1,
2] according to Fig.
1. According to the comparison given by Delehay et al. [
3], amperometry can be distinguished easily from voltammetry by the quantity being controlled (electrode potential
E and concentration
c, respectively) and the quantity being measured (electrode current
I = f(
c) and
I = f(
E), respectively). The electrode potential
E of an amperometric measuring electrode has to be fixed within the diffusion limited current plateau in the voltammogram
I = f(
E).